“Construction crews are digging two huge shafts today through which they will lower tunnel-boring machines as part of the MTA’s 7-line extension serving Hudson Yards. The machines will arrive next year and will help dig a new subway tunnel, that will extend the 7 train from Times Square to 11th Avenue and down to 34th Street.”

The new tunnel will provide subway service to the Javits Center, our absurdly inaccessible convention center. The project is expected to be completed by 2013, so figure 2015 at the earliest.